Fans fear Cisse could have played his last game for the club, after his offer to wear an un-branded shirt or one bearing a charity logo was turned down.

The PFA hopes to help find a successful resolution, and chief executive Taylor said “We’re working with Newcastle United, Papiss Cisse and his advisor to see if we can achieve a satisfactory settlement of this difficult situation.

“We’re consulting and meeting with experienced people within football used to dealing with equality issues, who are also members of the Muslim faith.”

Cisse has a religious objection to advertising Wonga, the controversial pay-day lender which has come under fire for its sky-high interest rates. the Senegal star is yet to train with his team-mates after reporting back earlier this month.

Islam forbids the lending of money for interest, but Cisse, a £9m signing from German side Freiburg 18 months ago, has previously worn Newcastle strips advertising banks Virgin Money and Northern Rock.